Yes, me. In that I utterly failed to stick to it. My problem isn't really that I have too much stuff (I decluttered lots when we moved house recently ). It's that I am not a naturally tidy person and am pathetically bad at tidying up as I go along.
I love the theory of Kondo and found it lovely to read. And I love few things more than an immaculate house. But I very very rarely achieve it 
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Maybe I need to re-join the Kondo thread and start again!